this.fieldMap.get(key).$$optionMap 增加undefined检查

[applerao]

报错信息：

Uncaught (in promise) TypeError: Cannot read property '$$optionMap' of undefined at t.value (0.bundle.min.js:formatted:21485) at 0.bundle.min.js:formatted:21473 at Array.forEach () at t.value (0.bundle.min.js:formatted:21472) at t.value (0.bundle.min.js:formatted:21449) at p.updateComponent (vendor.min.js:4) at p.receiveComponent (vendor.min.js:4) at Object.receiveComponent (vendor.min.js:1) at Object.updateChildren (vendor.min.js:4) at h._reconcilerUpdateChildren (vendor.min.js:5)

定位问题：

innerTable.js Line 154 if(this.fieldMap.get(key).$$optionMap) 需要增加undefined检查，如： if (this.fieldMap.get(key) && this.fieldMap.get(key).$$optionMap)